326403986897 has 8 divisors (see below), whose sum is σ = 337715688000. Its totient is φ = 315096045264.

The previous prime is 326403986869. The next prime is 326403986927. The reversal of 326403986897 is 798689304623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 326403986897 - 2²⁰ = 326402938321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326403956897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762647 + ... + 1111052.

It is an arithmetic number, because the mean of its divisors is an integer number (42214461000).

Almost surely, 2^326403986897 is an apocalyptic number.

It is an amenable number.

326403986897 is a deficient number, since it is larger than the sum of its proper divisors (11311701103).

326403986897 is a wasteful number, since it uses less digits than its factorization.

326403986897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879735.

The product of its (nonzero) digits is 94058496, while the sum is 65.

The spelling of 326403986897 in words is "three hundred twenty-six billion, four hundred three million, nine hundred eighty-six thousand, eight hundred ninety-seven".